# File lib/facter/util/virtual.rb, line 145
  def self.jail?
    path = case Facter.value(:kernel)
      when "FreeBSD" then "/sbin"
      when "GNU/kFreeBSD" then "/bin"
    end
    Facter::Core::Execution.exec("#{path}/sysctl -n security.jail.jailed") == "1"
  end